Effect of genioglossus, geniohyoid, and digastric advancement on tongue base and hyoid position

Objectives/Hypothesis To assess the effect of genioglossus, geniohyoid, and anterior digastric muscle advancement on base of tongue and hyoid position. Study Design Cadaver experiments. Methods In fresh cadavers, the mandibular attachments of the genioglossus, geniohyoid, and anterior digastric musc...

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Bibliographic Details
Published in:The Laryngoscope 2017-08, Vol.127 (8), p.1938-1942
Main Authors: Kutzner, Emily A., Miot, Christelle, Liu, Yuan, Renk, Elizabeth, Park, Joshua S., Inman, Jared C.
Format: Article
Language:English
Subjects:
Aged
attachment
Cadaver
digastric
Female
Genioglossus advancement
geniohyoid
Humans
Hyoid Bone - anatomy & histology
hyoid suspension
Male
Mandible
mandible osteotomy
Maxillofacial surgery
Muscle, Skeletal - surgery
obstructive sleep apnea
Sleep apnea
Sleep Apnea, Obstructive - surgery
Tongue
Tongue - anatomy & histology
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Summary:Objectives/Hypothesis To assess the effect of genioglossus, geniohyoid, and anterior digastric muscle advancement on base of tongue and hyoid position. Study Design Cadaver experiments. Methods In fresh cadavers, the mandibular attachments of the genioglossus, geniohyoid, and anterior digastric muscles were advanced anteriorly by 6, 10, or 14 mm, and the anterior displacement of the base of tongue and hyoid was measured. The degrees of displacement of the tongue base and hyoid by the individual muscles and combinations of muscles were compared to one another. Results In 11 cadavers, 462 measurements were taken. Genioglossus advancement alone produced significantly greater tongue base advancement than any other muscle (P < .001). No combination of muscles produced significantly more tongue base advancement than the genioglossus alone. Geniohyoid (P < .001) and anterior digastric muscle (P < .001) advancement both produced significantly greater hyoid advancement than the genioglossus, but there was no difference between the two (p = .615). No combination of muscles produced significantly more hyoid advancement than the geniohyoid or anterior digastric alone. Conclusions Genioglossus muscle advancement produces the greatest base of tongue advancement. Geniohyoid or anterior digastric muscle advancement produces the greatest hyoid advancement. Advancement of neither base of tongue nor hyoid was superior when combinations of muscles were moved. Level of Evidence NA Laryngoscope, 127:1938–1942, 2017
ISSN:0023-852X
1531-4995
DOI:10.1002/lary.26380